this derivation will be built:
  /nix/store/jfwl3pa7mlkrqv5ljrh3rnv6ifyh3ih9-treefmt-check.drv
building '/nix/store/jfwl3pa7mlkrqv5ljrh3rnv6ifyh3ih9-treefmt-check.drv'
treefmt-check> traversed 530 files
treefmt-check> emitted 287 files for processing
treefmt-check> formatted 287 files (0 changed) in 1.408s

post-build step Upload to niks3: ok
time=2026-09-21T19:59:50.923Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T19:59:51.418Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T19:59:51.801Z level=INFO msg="Upload complete. (899ms)"